The main theme of Mel's explosive memoir is the star's roller coaster ten-year marriage with her ex, Stephen Belafonte.

Mel accuses the music producer of years of emotional and physical abuse, driving her to the brink.

But Belafonte calls out the book as all 'lies' and challenges his ex to produce a single bit of evidence to prove he was violent or abusive.

He doubles down on the challenge by vowing to give his ex wife his share of their $7million marital home - IF she can produce a shred of evidence.

Chic: Sticking to a sparkly theme, the Say You Will Be There singer added height with a pair of glittering silver boots

Glam: She styled her tresses in a voluminous bob and framed her features with a slick of vampy burgundy lipstick

He references the night of December 14, 2014, days before Mel appeared at the UK X Factor grand final with what appeared to be marks or bruises on her body.

He explained to MailOnline: 'She has said I put her in the hospital and I beat her so bad that she was in there for six or seven days. That's an open and shut case. You show the hospital records, the judge says wow and then I am the scumbag that she says I am because she has the proof.

'But what she did was very tricky. She made all these allegations and then she won't show the hospital records.'

Belafonte said Mel's legal team fended off several exhaustive requests from his lawyers to see the records, citing HIPPA (Health Insurance Portability and Accountability Act) laws.

Tense: The main theme of Mel's explosive memoir is the star's roller coaster ten-year marriage with her ex, Stephen Belafonte - who plans to sue her for defamation

Hitting back: Mel accuses the music producer of years of emotional and physical abuse, driving her to the brink. But Belafonte calls out the book as all 'lies' and challenges his ex to produce a single bit of evidence to prove he was violent or abusive

'The judge can't even compel her to do it,' he said. 'So what she does is makes the allegations and then pulls back.

'But I stand behind it 100 million percent. I would give my interest in the house to be sold 100 percent to Melanie - show the hospital records.'

He added firmly: 'She can't show them because Melanie went into the hospital that day (Dec 14, 2014) for a drug overdose.

'Melanie has covered up her drug addiction time and time again and throwing me under the bus is kind of the way that she's done it.'

In Brutally Honest, Mel admits to being hospitalized after overdosing on 200 aspirins in a failed suicide bid on that 2014 date.

Oh dear: He is already planning to sue the singer for defamation of character over many of the false claims he says she's made in the book, saying: 'She claimed some horrific, horrific things'

Claims: He added: 'Melanie has covered up her drug addiction time and time again and throwing me under the bus is kind of the way that she's done it'

She also admitted to abusing alcohol and cocaine, drinking heavily and snorting six or seven lines of the white powder before her X Factor appearances.

Belafonte adds that in the book, while Mel regularly alludes to violence, she does not include details of several beatings she alleged she received from her ex in court papers during their bitter divorce last year.

In court documents filed in a bid to win a temporary domestic violence restraining order against Belafonte, Mel branded her ex a 'monster' and told a horrific story of abuse.

She claimed he tried to choke her and threw her to the ground during one rage in November, 2007, the night of her 'Dancing with the Stars' finale, she alleged Belafonte 'punched her and split her lip' after becoming jealous while she filmed a segment with Usher for the X Factor back in 2012 and in August the same year, the day after performing at the closing ceremonies for the London Olympics, she alleged Belafonte punched her with a closed fist and pushed her down on the carpet.

Not a care in the world: Mel seemed to be in good spirits despite Stephen's claims, as she posed alongside Meg Matthews at her book launch

But first, let me take a selfie: The singer beamed as she stopped for a snap with a male guest

Her skin was burned and her face 'actually scabbed over the rug burns,' she claimed.

Yet despite this apparent 'pattern' of violence not a single one of these allegations is included in the memoir.

Belafonte says the former couple do NOT have a non-disclosure agreement -meaning there's nothing to stop Mel from telling all.

Regardless, he is already planning to sue the singer for defamation of character over many of the false claims he says she's made in the book. 'She claimed some horrific, horrific things.'

So, he says, his question to Melanie is, why didn't she include what was in her initial deposition now.

'I don't know why she's not telling the world of all the things that she filed (in her deposition). That is very confusing.'